The Spike 90% Tungsten from BULLS is a dart set with 90% Tungsten barrels and is best known for the most grippy dart ever made. The Spike 90% darts have strong spikes all over the barrel which provide extreme grip. The Bull's Spike darts are made in 4 weights; 23-24-25-26 grams. The Spike Darts are made in New Zealand, where high-quality darts come from. The dart set comes standard with the Bull's Spike Powerflite, the Alabama Medium Black Shaft and the Bull's Steel Dart Points Black 35mm. Every official Bull's Spike 90% Dart has the 'Bull's Logo' laser engraving. The Spike 90% is also available in Softtip. 23G = Barrel Length: 50.40mm, Barrel Width 7.40mm. 24G = Barrel Length: 50.40mm, Barrel Width: 7.40mm. 25G = Barrel Length: 50.30mm, Barrel Width 7.40mm. 26G = Barrel Length: 50.30mm, Barrel Width 7.50mm.